package com.example.mapper;

import com.example.bean.Student11;

import java.util.List;

/*
    持久层接口
 */
public interface StudentMapper1 {
    //查询全部
    public abstract List<Student11> selectAll();

    //根据id查询
    public abstract Student11 selectById(Integer id);

    //新增数据
    public abstract Integer insert(Student11 stu);

    //修改数据
    public abstract Integer update(Student11 stu);

    //删除数据
    public abstract Integer delete(Integer id);

}
